diff --git a/src/MissionManager/SurveyMissionItem.cc b/src/MissionManager/SurveyMissionItem.cc
index fd10f9aeb3ae2b398e9a3308abc8b983765ab3e2..0c0a4ff18ad4e2850acd1af04f4218b4a37b0f5d 100644
--- a/src/MissionManager/SurveyMissionItem.cc
+++ b/src/MissionManager/SurveyMissionItem.cc
@@ -30,7 +30,7 @@ const char* SurveyMissionItem::_jsonCameraTriggerKey =              "cameraTrigg
 const char* SurveyMissionItem::_jsonCameraTriggerDistanceKey =      "cameraTriggerDistance";
 const char* SurveyMissionItem::_jsonGroundResolutionKey =           "groundResolution";
 const char* SurveyMissionItem::_jsonFrontalOverlapKey =             "imageFrontalOverlap";
-const char* SurveyMissionItem::_jsonSideOverlapKey =                "imageSizeOverlap";
+const char* SurveyMissionItem::_jsonSideOverlapKey =                "imageSideOverlap";
 const char* SurveyMissionItem::_jsonCameraSensorWidthKey =          "sensorWidth";
 const char* SurveyMissionItem::_jsonCameraSensorHeightKey =         "sensorHeight";
 const char* SurveyMissionItem::_jsonCameraResolutionWidthKey =      "resolutionWidth";
@@ -393,6 +393,13 @@ bool SurveyMissionItem::load(const QJsonObject& complexObject, int sequenceNumbe
 
         QJsonObject cameraObject = v2Object[_jsonCameraObjectKey].toObject();
 
+        // Older code had typo on "imageSideOverlap" incorrectly being "imageSizeOverlap"
+        QString incorrectImageSideOverlap = "imageSizeOverlap";
+        if (cameraObject.contains(incorrectImageSideOverlap)) {
+            cameraObject[_jsonSideOverlapKey] = cameraObject[incorrectImageSideOverlap];
+            cameraObject.remove(incorrectImageSideOverlap);
+        }
+
         QList<JsonHelper::KeyValidateInfo> cameraKeyInfoList = {
             { _jsonGroundResolutionKey,             QJsonValue::Double, true },
             { _jsonFrontalOverlapKey,               QJsonValue::Double, true },